Bug summary import matplotlib.pyplot returns ModuleNotFoundError: No module named 'importlib_resources' on Matplotlib version 8d2d4c2. Can anyone reproduce this? Code for reproduction import ...

Bug summary Once I type " import matplotlib.pyplot as plt" and run it, jupyter always returns： ＂Matplotlib is building the font cache; this may take a moment.＂ ＃Then the return messages will end up as ...